1305.4562 (Pei Wang et al.)

Effect of Tensor Interaction on Density Dependence of Nuclear Symmetry
Energy within the BHF Framework    [PDF]

Pei Wang, Wei Zuo

The effect of tensor force on the density dependence of nuclear symmetry energy has been investigated within the framework of the Brueckner-Hartree-Fock approach. It is shown that the tensor force manifests its effect via the tensor 3SD1 channel. The symmetry energy $E_{sym}$ turns out to be determined essentially by the tensor force from the $\pi$ meson and $\rho$ meson exchanges via the 3SD1 coupled channel. Increasing the strength of the tensor component due to the $\rho$-meson exchange tends to enhance the repulsion of the equation of state of symmetric nuclear matter and leads to reduction of symmetry energy. The present results confirm the dominant role played by the tensor force in determining nuclear symmetry energy and its density dependence.

View original: http://arxiv.org/abs/1305.4562